Did you know?A glass of water could prevent a heart attack! The benefit of drinking a glass of water an hour before bedtime is that the water helps your body remain hydrated while you sleep. If you become dehydrated when you sleep, your blood viscosity increases, and that makes your heart work harder. Drinking a glass of water an hour before bed is also associated with reduced risk of stroke as well.Hydration and your HeartWhen you lose just 1% of your body weight in water, you are dehydrated. Dehydration makes your heart work harder because it makes your blood thicker. Dehydration also reduces your body’s ability to regulate its temperature, which can make dehydration worse if you’re hot. Drinking water before bed, and throughout the day is essential for good heart health.Bottled water is the worst way to get hydrated. Plastic bottles leech harmful BPA, and make water taste like plastic! Bottled water is terrible for the environment as well.